Sprue bush for a disc-molding die



FIG. 1 is a perspective view of a sprue bush for a disc-molding die;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a left side view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a top plan view thereof; and,

FIG. 7 is a bottom view thereof.

The broken lines shown in the bottom view are for illustrative purposeonly and form no part of the claimed design.

An ornamental design for a sprue bush for a disc-molding die, as shownand described.